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MySQL-5.6 基于GTID及多线程的主从复制

来源：SegmentFault 2023-01-23 10:02:27 0浏览收藏

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Master 配置:

[mysqld]
datadir=/data/mysql
socket=/tmp/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
innodb_file_per_table=1
 
binlog-format=ROW
log-bin=master-bin
log-slave-updates=true #是否将从其他服务器读取的数据记录到二进制日志中
gtid-mode=on
enforce-gtid-consistency=true #开启强制GTID一致性
master-info-repository=TABLE #定义master-info 记录在table中
relay-log-info-repository=TABLE #定义relay-log-info 记录在table中
sync-master-info=1 #启用之可确保无信息丢失；任何一个事务提交后, 将二进制日志的文件名及事件位置记录到文件中
slave-parallel-workers=2 #设定从服务器的SQL线程数；0表示关闭多线程复制功能
binlog-checksum=CRC32 #启用复制有关的校验功能
master-verify-checksum=1
slave-sql-verify-checksum=1
binlog-rows-query-log_events=1
server-id=1
report-port=3306
port=3306
report-host=10.11.8.219 #标明自己的主机名或端口号
 
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

Slave 配置:

[mysqld]
binlog-format=ROW
log-slave-updates=true
gtid-mode=on
enforce-gtid-consistency=true
master-info-repository=TABLE
relay-log-info-repository=TABLE
sync-master-info=1
slave-parallel-workers=2
binlog-checksum=CRC32
master-verify-checksum=1
slave-sql-verify-checksum=1
binlog-rows-query-log_events=1
server-id=10
report-port=3306
port=3306
log-bin=mysql-bin.log
report-host=10.11.8.216
 
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

启动服务, 查看Master 状态:

mysql> show master status;
+-------------------+----------+--------------+------------------+-------------------+
| File              | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+-------------------+----------+--------------+------------------+-------------------+
| master-bin.000004 |      151 |              |                  |                   |
+-------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
mysql> show global variables like '%uuid%';
+---------------+--------------------------------------+
| Variable_name | Value                                |
+---------------+--------------------------------------+
| server_uuid   | 441052e5-28c9-11e6-9cd1-0800274f81c9 |
+---------------+--------------------------------------+
1 row in set (0.00 sec)
创建复制用户:
 
[root@keep1 ~]# service mysqld start
Starting MySQL...... SUCCESS!
[root@keep1 ~]# mysql
...
mysql> grant replication slave on *.* to 'repluser'@'10.11.8.%' identified by 'replpass';
Query OK, 0 rows affected (0.00 sec)
 
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
Slave 上 配置连接, 查看状态, 启动slave :
mysql> change master to master_host='10.11.8.219',master_user='repluser',master_password='replpass',master_auto_position=1;
Query OK, 0 rows affected, 2 warnings (0.01 sec)
mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State:
                  Master_Host: 10.11.8.219
                  Master_User: repluser
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File:
          Read_Master_Log_Pos: 4
               Relay_Log_File: relay-log.000004
                Relay_Log_Pos: 284
        Relay_Master_Log_File:
             Slave_IO_Running: No
            Slave_SQL_Running: No
              Replicate_Do_DB:
          Replicate_Ignore_DB:
           Replicate_Do_Table:
       Replicate_Ignore_Table:
      Replicate_Wild_Do_Table:
  Replicate_Wild_Ignore_Table:
                   Last_Errno: 0
                   Last_Error:
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 0
              Relay_Log_Space: 0
              Until_Condition: None
               Until_Log_File:
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File:
           Master_SSL_CA_Path:
              Master_SSL_Cert:
            Master_SSL_Cipher:
               Master_SSL_Key:
        Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error:
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 0
                  Master_UUID: 441052e5-28c9-11e6-9cd1-0800274f81c9
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State:
           Master_Retry_Count: 86400
                  Master_Bind:
      Last_IO_Error_Timestamp:
     Last_SQL_Error_Timestamp:
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set:
            Executed_Gtid_Set:
                Auto_Position: 1
1 row in set (0.00 sec)
mysql> start slave;
ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository
mysql> reset slave; #报了个小错, 重置一下slave即可
Query OK, 0 rows affected (0.00 sec)
mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.03 sec)
 
mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.11.8.219
                  Master_User: repluser
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: master-bin.000004
          Read_Master_Log_Pos: 151
               Relay_Log_File: keep2-relay-bin.000004
                Relay_Log_Pos: 363
        Relay_Master_Log_File: master-bin.000004
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB:
           Replicate_Do_Table:
       Replicate_Ignore_Table:
      Replicate_Wild_Do_Table:
  Replicate_Wild_Ignore_Table:
                   Last_Errno: 0
                   Last_Error:
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 151
              Relay_Log_Space: 853
              Until_Condition: None
               Until_Log_File:
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File:
           Master_SSL_CA_Path:
              Master_SSL_Cert:
            Master_SSL_Cipher:
               Master_SSL_Key:
        Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error:
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 1
                  Master_UUID: 441052e5-28c9-11e6-9cd1-0800274f81c9
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
           Master_Retry_Count: 86400
                  Master_Bind:
      Last_IO_Error_Timestamp:
     Last_SQL_Error_Timestamp:
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set:
            Executed_Gtid_Set:
                Auto_Position: 1
1 row in set (0.00 sec)

查看Master

mysql> show slave hosts;
+-----------+-------------+------+-----------+--------------------------------------+
| Server_id | Host        | Port | Master_id | Slave_UUID                           |
+-----------+-------------+------+-----------+--------------------------------------+
|        10 | 10.11.8.216 | 3306 |         1 | 8fe51461-28cc-11e6-9ce7-0800270acb32 |
+-----------+-------------+------+-----------+--------------------------------------+
1 row in set (0.00 sec)
 
mysql> show global variables like '%gtid%';
+---------------------------------+----------------------------------------+
| Variable_name                   | Value                                  |
+---------------------------------+----------------------------------------+
| binlog_gtid_simple_recovery     | OFF                                    |
| enforce_gtid_consistency        | ON                                     |
| gtid_executed                   | 441052e5-28c9-11e6-9cd1-0800274f81c9:1 |
| gtid_mode                       | ON                                     |
| gtid_owned                      |                                        |
| gtid_purged                     |                                        |
| simplified_binlog_gtid_recovery | OFF                                    |
+---------------------------------+----------------------------------------+
7 rows in set (0.00 sec)mysql> show slave hosts;
+-----------+-------------+------+-----------+--------------------------------------+
| Server_id | Host        | Port | Master_id | Slave_UUID                           |
+-----------+-------------+------+-----------+--------------------------------------+
|        10 | 10.11.8.216 | 3306 |         1 | 8fe51461-28cc-11e6-9ce7-0800270acb32 |
+-----------+-------------+------+-----------+--------------------------------------+
1 row in set (0.00 sec)
 
mysql> show global variables like '%gtid%';
+---------------------------------+----------------------------------------+
| Variable_name                   | Value                                  |
+---------------------------------+----------------------------------------+
| binlog_gtid_simple_recovery     | OFF                                    |
| enforce_gtid_consistency        | ON                                     |
| gtid_executed                   | 441052e5-28c9-11e6-9cd1-0800274f81c9:1 |
| gtid_mode                       | ON                                     |
| gtid_owned                      |                                        |
| gtid_purged                     |                                        |
| simplified_binlog_gtid_recovery | OFF                                    |
+---------------------------------+----------------------------------------+
7 rows in set (0.00 sec)

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